The queen already keep a tight lock on who go in and out.

Yet Cerberus still keeps a relatively tight lock on its doors.

Quarrel did a racing change and hurled the car round on a tight lock.

Then she pulled herself through the tight locks, into the landing vehicle she had been assigned to.

He said big oil companies had pressured lenders, hoping to keep a tight lock on the market by blocking independent competitors.

Those missiles are under the tightest lock and key.

She had a tight lock on him.

At first, navy officials believed that deformed deck plates around the hatch were preventing a tight lock.

Then, like a hand unclasping from a tight lock, Ruth passed by him.

Someone from the outside ledge had caved in the whole window, in order to dispose of the tight lock.